Publications by authors named "Christophe A Muller"

Background: The proportion of octogenarians requiring surgery for pancreatic disease is rapidly growing. This trend will be continued during the next decades, posing a challenge to surgeons and the health care system worldwide. This study aimed to analyze the results of pancreatic surgery in octogenarians in terms of safety and survival based on a cohort of patients at a European high-volume center.

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Objectives: This study aimed at T-cell inhibition by immunosuppressants to reduce cell damage and improve the course of severe acute pancreatitis (SAP).

Methods: A taurocholate-induced SAP was used and 5 groups were compared: (1) rapamycin + FTY720, (2) rapamycin, (3) FTY720, (4) cortisol, and (5) control: sodium chloride. Drugs were applied intravenously at SAP induction; 6 hours later, rats were killed.

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Melatonin plays a protective role in experimental acute pancreatitis (AP) because of its antioxidative, antiinflammatory, and immunomodulatory effects. This study presents the first data on the dynamic changes of endogenous melatonin in the early phase of human AP. Morning (08:00 hr) serum melatonin concentrations were measured by ELISA in 75 patients with AP for the first 5 days after the onset of pain.

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Objective: beta-Cell mass declines progressively during the course of diabetes, and various antidiabetic treatment regimens have been suggested to modulate beta-cell mass. However, imaging methods allowing the monitoring of changes in beta-cell mass in vivo have not yet become available. We address whether pancreatic beta-cell area can be assessed by functional test of insulin secretion in humans.

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Background: This study reports the first results of durometrically measured hardness of human pancreas and investigates its correlation to palpatory determined hardness, grade of pancreatic fibrosis, and preoperatively determined radiodensity.

Methods: Fifty-two patients with pancreatic resections were prospectively recruited. Hardness of samples from pancreatic cancer, chronic pancreatitis, and normal pancreas was measured using a durometer on a 0-100 Shore units (SU) scale.

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Study Design: A prospective analysis of intraoperative bile duct cultures in patients undergoing surgery for both, malignant or benign periampullary diseases at the Department of Surgery, St Josef Hospital, Bochum, Germany, during a period of 18 months, between January 2004 and June 2005.

Goals: The goals of the presented study were to investigate the effects of preoperative bile duct stenting on intraoperative bile duct cultures and postoperative outcome in patients undergoing pancreatic surgery.

Background: In pancreatic surgery, bile duct stenting is often aimed at improving postoperative outcome.

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Background/aims: Hereditary pancreatitis (HP) is a rare cause of chronic pancreatitis (CP; 1%) and more than 25 mutations in the PRSS1 gene have been detected. HP patients with the p.R122H mutation have a 35% lifetime risk of developing pancreatic cancer, but the oncogenetic process remains unknown.

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Objectives: This study investigates the hypothesis that an adrenocorticotropic hormone-analog therapy may ameliorate relative adrenal insufficiency in the early phase of acute necrotizing pancreatitis (NP) by boosting endogenous glucocorticoid production.

Methods: Forty Wistar rats with taurocholate-induced NP were divided into 5 groups: the first group received low-dose Synacthen (0.5 mg/kg); the second, high-dose Synacthen (5mg/kg); the third,low-dose cortisol (10 mg/kg); the fourth, high-dose cortisol (100 mg/kg); and the fifth, the control group, received no treatment.

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Purpose: Surgical procedures for esophageal cancer and chronic pancreatitis are demanding and still characterized by high morbidity and mortality. Cases of one-stage combined operations on the pancreas and esophagus with a long-term follow-up are rarely reported.

Materials And Methods: We present the case of a 54-year-old woman with a Barrett's carcinoma and an 8-year history of severe chronic pancreatitis complicated with multiple episodes of cholangitis and resistant to conservative treatment.

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Background: Surgical treatment for chronic pancreatitis (CP) in children comprises predominantly nonresective draining procedures. The purpose of this study was to identify indications, techniques, and results of organ-preserving resective pancreatic procedures for pediatric CP at our institution.

Patients And Methods: A retrospective chart review was performed of all children undergoing pancreatic surgery for CP over a period of 4 years.

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Intraductal papillary mucinous neoplasms (IPMNs) of the pancreas are now a well-recognized category of slowly growing tumors with a remarkably better prognosis, even when malignant, than pancreatic ductal adenocarcinoma. Their clinical and pathohistologic features have been increasingly attracting the attention of clinicians since their first description 25 years ago. Despite its burgeoning volume recently, accumulated literature devoted to IPMN still provides a low level of evidence with regard to diagnosis, treatment, and prognosis.

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Objective: Infected pancreatic necrosis is the main cause of death in patients with acute pancreatitis, and therefore its early prediction is of utmost importance. Endogenous cortisol metabolism plays a basic role both in the course of acute pancreatitis and in the process of infection. The purpose of this study was to analyze corticosteroid-binding globulin (CBG), total cortisol, calculated free cortisol and adrenocorticotropic hormone as potential early predictors in order to differentiate between infected pancreatic necrosis and sterile pancreatic necrosis in patients with acute pancreatitis.

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Background: Pancreatic redo procedures belong to the most difficult abdominal operations because of altered anatomy, significant adhesions, and the potential of recurrent disease. We report on our experience with 15 redo procedures among a series of 350 consecutive pancreatic operations.

Patient And Methods: From January 1, 2004 to May 31, 2006 a total of 350 patients underwent pancreatic surgery in our department.

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Objective: This study aimed to observe how levels of total cortisol, calculated free cortisol, corticosteroid-binding globulin, and adrenocorticotropic hormone change during the early course of human acute pancreatitis and to describe how these changes affect the development of pancreatic necrosis.

Design And Patients: In a total of 109 consecutive patients with acute pancreatitis (74 with edematous pancreatitis, 35 with necrotizing pancreatitis), serial daily blood monitoring of total and free cortisol, adrenocorticotropic hormone, and corticosteroid-binding globulin was done after hospital admission, up to day 6 after the onset of pain; 30 healthy individuals served as controls.

Measurements: Corticosteroid-binding globulin and total cortisol were measured by immunoassays, and free cortisol was calculated according to Coolens et al.

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Background: The activation peptide released from procarboxypeptidase B, CAPAP, is a marker of the activation of pancreatic enzymes in acute pancreatitis while anionic trypsinogen (AT) levels in urine relate to leakage of unactivated proenzymes. Data on these markers in patients suffering from severe acute abdominal disorders of non-pancreatic origin are lacking.

Purpose: To examine levels of CAPAP and AT in serum and urine from patients with severe acute abdominal disorders of non-pancreatic origin in order to better define the diagnostic specificity of these two markers in severe acute pancreatitis in relation to other acute intra-abdominal disorders.

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Article Synopsis
  • Antibiotic treatment is crucial for managing severe acute pancreatitis, and the study focuses on how well cefepime penetrates pancreatic tissue in two acute pancreatitis models.
  • After inducing pancreatitis in animals and administering cefepime, the concentration of the drug in pancreatic tissue was significantly higher in both mild and severe cases compared to control animals.
  • The study concludes that cefepime maintains effective levels in pancreatic tissue over time and significantly reduces infection rates, suggesting its potential for treating severe acute pancreatitis in patients.
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Introduction: Many of the complications in severe acute pancreatitis result from the amplifying effects of microcirculatory disruption. Contrast medium may cause significant additional reductions of capillary flow, which has been shown to aggravate acute pancreatitis in experimental studies.

Aim: To investigate the role of serial contrast-enhanced computed tomography (CECT) in patients with acute pancreatitis.

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